topic Re: sed problem in Operating System - HP-UX

sed problem

Michael Treadwell_1 — Wed, 05 Mar 2003 14:53:16 GMT

I have a problem where I would like to replace / with tabs. I am using

sed s/[/]//g

but hitting the tab key does not work. Any ideas why not? Or how else I might do this?
Thanks!

Re: sed problem

Robin Wakefield — Wed, 05 Mar 2003 14:57:06 GMT

Hi Michael,

I think you might just be missing quotes. This works for me:

sed 's+/+ +g' filename

where I just pressed that tab key between the 2nd pair of "+" chars.

rgds, Robin

Re: sed problem

Christian Gebhardt — Wed, 05 Mar 2003 14:58:53 GMT

Hi

simply press the TAB-Button instead of

Chris

Re: sed problem

Michael Treadwell_1 — Wed, 05 Mar 2003 15:10:03 GMT

Robin & Christian,

I am hitting the actual tab key and it does not work, either in my example or in Robin's.

Re: sed problem

Hai Nguyen_1 — Wed, 05 Mar 2003 15:26:36 GMT

Michael,

Hitting the tab key should work. Try this below:

# echo "field1/field2" | sed 's:/::'

Hai

Re: sed problem

Richard Hood — Wed, 05 Mar 2003 15:30:56 GMT

You can do the substitution with vi.

vi
~
~
~
~
~
:g/\///s///gp

This will globally change the "/" to a

You will need to :x! to save and exit vi

Re: sed problem

Robin Wakefield — Wed, 05 Mar 2003 15:31:14 GMT

Hi Michael,

What does this show:

echo a/b | sed 's+/+ +g' | od -c

I see:

# echo a/b | sed 's+/+ +g' | od -c
0000000 a \t b \n
0000004

rgds, Robin

Re: sed problem

Richard Hood — Wed, 05 Mar 2003 15:32:10 GMT

global line should read

:g/\//s///gp

I had one too many "/"'s sorry

Re: sed problem

S.K. Chan — Wed, 05 Mar 2003 15:32:43 GMT

This works for me (ie using the tab key).
# cat myfile | sed 's/\///g'

Re: sed problem

Richard Hood — Wed, 05 Mar 2003 15:37:43 GMT

you can also try to put the ctrl-v before the ,tab - on the sed line -- either way works for me. as well..

Re: sed problem

James R. Ferguson — Wed, 05 Mar 2003 15:39:33 GMT

Hi:

Robin's syntax works fine. Don't copy-and-paste it. Try replicating the TAB character both with the tab key and by pressing "control", "v" and then "I". This can be done at commandline and should act identically to pressing the tab key. In fact, you should see your cursor move.

Regards!

...JRF...

Re: sed problem

John Meissner — Wed, 05 Mar 2003 16:07:06 GMT

sed 's /\//g'

Re: sed problem

John Meissner — Wed, 05 Mar 2003 16:07:19 GMT

sed 's /\///g'

Re: sed problem

John Meissner — Wed, 05 Mar 2003 16:08:12 GMT

sorry for the almost the same double post.... i caught my type-o just as I hit send on the first one.

Re: sed problem

Michael Treadwell_1 — Wed, 05 Mar 2003 18:33:57 GMT

Robin, I get the following:

[immpact:immpacts]:~/bin
bash-2.05$ echo a/b | sed 's+/+ +g' | od -c

0000000 a b \n
0000004

[immpact:immpacts]:~/bin
bash-2.05$

James, when I type ctrl-v then I, I get an I on the line.

Everyone else,
Anything requiring the tab key does not seem to work. At the console, the tab key doesn't do anything. Might this be a shell issue? The account I'm working under uses bash.

Re: sed problem

Michael Treadwell_1 — Wed, 05 Mar 2003 18:48:06 GMT

Duh! It's a shell issue of some sort. As the user under bash, no tab key. As root under sh, all of your examples work!

Anyone have a clue what could be different in the enviroments to cause tab not to work? If it matters, this is a k class running 10.20.

Re: sed problem

John Poff — Wed, 05 Mar 2003 19:02:45 GMT

Hi,

I got this example to work in my bash shell [on my Linux box]:

sed 's#/#\t#g'

The slashes were a little confusing in the substitution syntax, so I replaced them with the '#' sign. For the tab character, I used the \t expression.

JP

Re: sed problem

John Poff — Wed, 05 Mar 2003 19:21:29 GMT

Oops. Scratch my previous post. It doesn't work. But I did get it to work with the control-v method.

JP

Re: sed problem

James R. Ferguson — Wed, 05 Mar 2003 19:43:13 GMT

Hi (again):

John P: The '\t' to represent a tab character doesn't work in all 'sed' versions. It does in gnu's 'sed' by not the HP version, for instance.

When using the "control, v, I" key sequence to generate a tab, press "ctrl", then press "v" and release that key, and finally while holding down the "ctrl" key, press "I". You should not see a visible "I" unless is appears as "^I". In my case, blank space appears and the cursor moves.

Regards!

...JRF...

Re: sed problem

John Meissner — Wed, 05 Mar 2003 20:03:16 GMT

I did have this problem (with shells) between by linux box (bash) and my Unix server (ksh). I was developting a script on my linux box to eventually run on my unix server.... i couldn't get it to work in the bash prompt but as soon as i tried in on my ksh shell everything worked.